# Services to load and play `Sound` and `Music` from the assets folder
#
# Get a handle to a sound using `new Sound` or `new Music` at any time.
# Call `load` at or after `App::on_create` or leave it to be loaded
# on demand by the first call to `play`.
module audio

import app_base
import core::error

# Platform variations
import linux::audio is conditional(linux)
import android::audio is conditional(android)
import ios::audio is conditional(ios)

# Abstraction of a playable Audio
abstract class PlayableAudio

	init do sounds.add self

	# Path to the audio file in the assets folder
	var path: String

	# Last error on this sound, if any
	fun error: nullable Error do return null

	# Load this playable audio
	fun load do end

	# Play the sound
	fun play do end

	# Pause the sound
	fun pause do end

	# Resume the sound
	fun resume do end
end

# Short sound
class Sound
	super PlayableAudio
end

# Long sound that can bee looped
class Music
	super PlayableAudio
end

redef class Sys

	# All instantiated sounds
	var sounds = new Array[PlayableAudio]
end